The reasons why cats kick themselves with their hind legs:

1. When a cat is infected with parasites or fleas, the cat will kick itself with its hind legs to scratch itself. And get rid of fleas.

2. Cats may be allergic to foreign substances, drugs or food, causing red spots and itching on the body. The cat will also kick itself with its hind legs to scratch the itch.

3. When a certain movement or sound frightens the cat to a certain extent, the cat will kick its hind legs, break free, and then escape.

Solutions for cats kicking themselves with their hind legs:

1. If it is caused by parasites, the cat must be regularly dewormed internally and externally to solve the problem.

2. If it is caused by drug or food allergy, give the cat anti-allergic drugs and keep the allergen away from the cat.

3. If it is caused by fright, you should soothe the cat’s emotions and let the cat regain its calmness.